ANNA (CBSDFW.COM/AP) — The father of a two-year-old boy who died after being found in a hot car could face updated charges.

Joshua Cartee is already being held in the Collin County jail, charged with injury to a child. Sheriff’s Lt. John Norton says no decision has been made on whether to upgrade the charge against him.

The Dallas County Medical Examiner’s Office on Wednesday had not yet released a cause of death for two-year-old Jordan Cartee.

He was found unconscious Sept. 12 in a vehicle outside his home as temperatures were in the 90s. Jordan died Monday afternoon at a Dallas hospital.

CBS 11 has learned that the Joshua Cartee had been previously warned by Child Protective Services in July, after a stranger found Joshua wandering around the property by himself, picked him up and called police.

At that time, CPS told the family to install safety locks in the home and to provide better supervision for the toddler.